<!DOCTYPE html>
<html>
<head>
    <title>test</title>
</head>

<link rel="stylesheet" type="text/css" href="../css/a.css">


<body>
<!-- <p><strong>原始图标</strong></p>
<i class="icon icon-del"></i>
<p><strong>可以变色的图标</strong></p> -->
<i class="icon">
    <i class="icon" style="filter: drop-shadow(rgb(204, 204, 255) 100px 0px);background: url(http://bk-bbe.com/static/sutras/edition/18/word/1/0.png) no-repeat center;"></i>

</body>
</html>